Ancient knowledge

"When you look at poems such as Beowulf, they often mention these elite warriors with their amazing weapons and fine decoration.

"But there was no archaeological proof of them, so it was thought they were made up.

"But actually, the hoard is that proof."

Or there's this:

A hundred years earlier, Billy Balch, a leader of the Makah tribe, recounted a similar story. Before his own time, he said, all the water had receded from Washington State’s Neah Bay, then suddenly poured back in, inundating the entire region. Those who survived later found canoes hanging from the trees.

Please note that I didn't title this "Ancient Wisdom." There is evidence for a certain amount of modern unwisdom, though.